| Patent application number | Description | Published |
|---|
| 20080273151 | LOW COLOR SHIFT OPTICAL FILM AND LIQUID CRYSTAL DISPLAY CONTAINING THE SAME - A low color shift optical film is provided. The low color shift optical film comprises a cholesteric liquid crystal film and a retardation plate consisting of one or more O-plate type retardation plates on the cholesteric liquid crystal film. The retardation plate provides functions of polarization transformation and color shift compensation. | 11-06-2008 |
| 20090168143 | Bi-stable projection screen - A bi-stable projection screen includes a light diffusion unit and a bi-stable display unit stacked together. The bi-stable display unit, when actuated, selectively operates in a first mode or a second mode. When operating in the first mode (e.g., a transmission mode or a reflection mode), the bi-stable display unit receives a projection light from a front projection or a rear projection, and emits the projection light after modulation. When operating in the second mode (a non-transmission mode or a non-reflection mode), the bi-stable display unit is a pattern to become a part of a scene. The light diffusion unit receives and diffuses the modulated projection light to be perceived by human eyes. | 07-02-2009 |
| 20090231706 | COLOR FILTER AND METHOD OF FABRICATING THE SAME - A color filter having a bi-layer metal grating is formed by nanoimprint lithography. Nanoimprint lithography, a low cost technology, includes two alternatives, i.e., hot-embossing nanoimprint lithography and UV-curable nanoimprint lithography. Manufacture steps includes providing a substrate with a polymer material layer disposed thereon. A plurality of lands and grooves are formed in the polymer material layer, and a first metal layer and a second metal layer are disposed on the surfaces of the lands and grooves, respectively. Finally, a color filter having a bi-layer metal grating is obtained. | 09-17-2009 |
| 20090246652 | COLOR FILTER AND METHOD OF FABRICATING THE SAME - A color filter having a bi-layer metal grating is formed by nanoimprint lithography. Nanoimprint lithography, a low cost technology, includes two alternatives, i.e., hotembossing nanoimprint lithography and UV-curable nanoimprint lithography. Manufacture steps comprises providing a substrate with a polymer material layer disposed thereon. A plurality of lands and grooves are formed in the polymer material layer, and a first metal layer and a second metal layer are disposed on the surfaces of the lands and grooves, respectively. Finally, a color filter having a bi-layer metal grating is obtained. | 10-01-2009 |
| 20090273742 | LOW COLOR SHIFT POLARIZER ASSEMBLY, AND BACK LIGHT UNITS AND LIQUID CRYSTAL DISPLAYS CONTAINING THE SAME - A low color shift polarizer assembly is provided, comprising a cholesteric liquid crystal film with a plurality of very tiny grooves which are irregularly dispersed on a surface of the cholesteric liquid crystal film. The selective reflective wavelength range of the cholesteric liquid crystal film has a long wavelength boundary ≧700 nm and a short wavelength boundary ≦420 nm. A quarter wavelength retardation plate can be disposed on the cholesteric liquid crystal film to build up the final low color shift polarizer assembly. The polarizer assembly can be combined with a backlight unit and further with a liquid crystal display to provide low color shift at large viewing angles and high brightness. | 11-05-2009 |
| 20100110336 | OPTICAL ELEMENTS, BACKLIGHT MODULES, AND LIQUID CRYSTAL DISPLAY EMPLOYING THE SAME - Optical elements and backlight modules employing the same are provided. The optical element can be a brightness enhancement diffusion complex film, comprising a cholesteric liquid crystal film and a transparent optical film directly disposed on the cholesteric liquid crystal film. Particularly, the whole transparent optical film directly contacts to the cholesteric liquid crystal film, in the absence of an intermediate located between the transparent optical film and the cholesteric liquid crystal film. | 05-06-2010 |
| 20100142048 | LIGHT SOURCE MODULE FOR GENERATING POLARIZED LIGHT - A light source module for generating polarized light includes a light emitting element, a reflector, and an optical element. The light emitting element generates a light ray, and the reflector reflects the light ray towards the optical element. The optical element includes a light splitting face and a reflection face. The light splitting face receives the light ray, and an angle between the light splitting face and the incident light ray is at about a Brewster's Angle. After the light ray is irradiated to the light splitting face, the light ray is divided into a refraction light and a reflection light. The reflection face reflects the refraction light, and the reflection face is substantially perpendicular to a path of the refraction light. Therefore, a light source with a high degree of polarization is realized by a design of the light splitting face and the reflection face. | 06-10-2010 |
| 20100171921 | LIQUID CRYSTAL DISPLAY - A liquid crystal display (LCD) includes two glass substrates, a liquid crystal unit formed by sandwiching a liquid crystal layer between the two glass substrates, a first polarizing film, and a second polarizing film. In another example, the LCD further includes a diffuse reflective film formed on the other side of the second polarizing film. In another example, the second polarizing film is replaced by a reflective film. The liquid crystal layer is composed of an antiferroelectric (including intermediate antiferroelectric) smectic liquid crystal material, and a birefringence of the liquid crystal layer changes along with an electric field applied to the liquid crystal layer. | 07-08-2010 |
| 20100321626 | BISTABLE DISPLAY MATERIALS AND METHODS AND DEVICES THEREOF - A display material and method and device thereof are provided. The display material is first formed by evenly mixing appropriate weight ratios of DFLCs, incurable nanoparticles, curable nanoparticles, and a photoinitiator. Next, the evenly mixed mixture is disposed between two parallel conducting transparent substrates, wherein an electrical field is conducted thereto and the DFLCs therein aligned to the direction of the applied electrical field. Concurrently, under the applied electrical field, some curable nanoparticles within the evenly mixed mixture, form short nano chains, initiating the photo initiator. The frame structure of short nano chains stabilize both the clear and scattering states, thereby the bistable characteristic was improved and the contrast ratio was enhanced as applied to bistable displays. | 12-23-2010 |
| 20110141406 | LOW COLOR VARIATION OPTICAL DEVICES AND BACKLIGHT MODULES AND LIQUID CRYSAL DISPLAYS COMPRISING THE OPTICAL DEVICES - A low color variation optical device is provided. The optical device includes a cholesteric liquid crystal film, a first phase retardation film disposed above the cholesteric liquid crystal film and a second phase retardation film disposed below the cholesteric liquid crystal film, wherein the second phase retardation film includes a plurality of molecules with a tilted and twisted arrangement. The invention also provides a backlight module and a liquid crystal display including a low color variation optical device. | 06-16-2011 |
